Big Button Calculator Pro Lite vs Fresenius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Big Button Calculator Pro Lite
A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.
- Large buttons
- Dual-line display
- 18 color themes
- Multi-line input
- Gesture controls
- VoiceOver accessibility
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This is THE BEST calculator for iOS with big buttons and colorful backgrounds! This version is ad supported. ・Dual-line display - shows the input and result at the same time ・Percentage and backspace button ・18 color themes ・Multi-line input for really long equations ・Automatic scientific formatting ・VoiceOver accessibility ・Split View Gestures ・Swipe left on the display to backspace ・Swipe right on the display to clear ・Tap & hold on the result to copy ・Tap & hold on the input to move the cursor, copy, paste Customize ・Color Theme ・Sound URL Scheme: bigcalculatorpro://
Fresenius
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Fresenius App is unified mobile solution, which provides customized services for different users, so that they can receive enterprise information and product updates any time. The application also includes real-time chat function, so that users can communicate each other without location boundary. The user-friendly design and tailor-made functional modules optimize and automate operation for users. 【Highlights】 • Security enhancement: passed the Penetration Test from SySS GmbH. • Offline: support offline operation when network is unavailable. • Auto sync: support automatic or manual synchronization of offline data. • Multi-media: support multiple types of media and files. • Self-service: reset your AD password conveniently. • Fingerprint login: support fingerprint login on devices with fingerprint verification. • More features are coming soon …
Screenshots
Verdict
The clearest difference is ads: Fresenius at none against Big Button Calculator Pro Lite's shown. Fresenius also leads on iOS requirement (10.0 vs 15.2). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Big Button Calculator Pro Lite ships an update every 3 months, Fresenius every 6 weeks. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.
| Parameter | Big Button Calculator Pro Lite | Fresenius |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (14K ratings) — better | — |
| Positive reviews | 82.5% of reviews | — |
| Number of ratings | 14K — better | — |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.2 | 10.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Cider Software LLC | Fresenius Netcare (Beijing) Consulting Co., Ltd. |
Bugs and requests
Big Button Calculator Pro Lite
Reported bugs
2 issues- Occasionally shows answer before calculation is complete
- Rounding issues leading to inaccurate results
Requested features
4 requests- Add more background options
- Allow custom background uploads
- Add option to change button colors
- Improve ad experience or offer ad-free version
Fresenius
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Big Button Calculator Pro Lite
No in-app purchases
Fresenius
No in-app purchases
Questions
Is Big Button Calculator Pro Lite free?
Is Fresenius free?
Do Big Button Calculator Pro Lite or Fresenius have ads?
Which is updated more often, Big Button Calculator Pro Lite or Fresenius?
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